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Finding the Fourth Proportional to 83,928.20, 125,892.30 and 64,901.30

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Solution

The fourth proportional to 83,928.20, 125,892.30 and 64,901.30 is: 97,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,928.20 : 125,892.30 = 64,901.30 : x
  2. Step 2: Convert to fraction form
    83,928.20/125,892.30 = 64,901.30/x
  3. Step 3: Cross multiply
    83,928.20x = 125,892.30 × 64,901.30
  4. Step 4: Simplify right side
    83,928.20x = 8,170,573,929.99
  5. Step 5: Solve for x
    x = 8,170,573,929.99/83,928.20
  6. Step 6: Final answer
    x = 97,351.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.